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High Resolution Esophageal Manometry
Dr. Geoffrey Turnbull MD, FRCPC Dalhousie University
Dr. Yvonne Tse MD, FRCPC University of Toronto
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Conflict of Interest Disclosure (over the past 24 months)
Commercial or Non-Profit Interest Relationship
Medtronic Speaker, consultant
Allergan Speaker
Name: Dr. Geoffrey Turnbull
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Conflict of Interest Disclosure (over the past 24 months)
Commercial or Non-Profit Interest Relationship
Abbvie Advisory board
Lupin Pharma Canada Consultant
Name: Dr. Yvonne Tse
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Copyright © 2015 The Royal College of Physicians and Surgeons of Canada. http://rcpsc.medical.org/canmeds. Reproduced with permission.”4
X Medical Expert (as Medical Experts, physicians integrate all of the CanMEDS Roles, applying medical knowledge, clinical skills, and professional values in their provision of high-quality and safe patient-centered care. Medical Expert is the central physician Role in the CanMEDS Framework and defines the physician’s clinical scope of practice.)
Communicator (as Communicators, physicians form relationships with patients and their families that facilitate the gathering and sharing of essential information for effective health care.)
Collaborator (as Collaborators, physicians work effectively with other health care professionals to provide safe, high-quality, patient-centred care.)
Leader (as Leaders, physicians engage with others to contribute to a vision of a high-quality health care system and take responsibility for the delivery of excellent patient care through their activities as clinicians, administrators, scholars, or teachers.)
X Health Advocate (as Health Advocates, physicians contribute their expertise and influence as they work with communities or patient populations to improve health. They work with those they serve to determine and understand needs, speak on behalf of others when required, and support the mobilization of resources to effect change.)
X Scholar (as Scholars, physicians demonstrate a lifelong commitment to excellence in practice through continuous learning and by teaching others, evaluating evidence, and contributing to scholarship.)
Professional (as Professionals, physicians are committed to the health and well-being of individual patients and society through ethical practice, high personal standards of behaviour, accountability to the profession and society, physician-led regulation, and maintenance of personal health.)
CanMEDS Roles Covered
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Learning objectives At the end of this session, participants will be able to: • Identify the role of high resolution esophageal
manometry study in your clinical practice • Utilize Chicago Classification when interpreting
esophageal manometry study • Apply esophageal manometry study in managing
patients with dysphagia and other esophageal symptoms
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Esophageal manometry
Dysphagia
Refer for appropriate evaluation and management
Esophageal
GERD symptoms
Oropharyngeal Other alarm
symptoms or signs
Dysphagia not resolved
PPI trials
Refer for endoscopy ± other imaging studies
Structural or inflammatory lesions by endoscopy or barium esophagram Manage lesions
Yes
No
No
No
Yes
Yes
Diagnostic approach to uninvestigated dysphagia
Liu et al. JCAG (in press).
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EMS is definitely indicated… • To establish the diagnosis of dysphagia in the absence
of mechanical obstruction (UGI series, endoscopy)
• For placement of intraluminal devices (e.g. pH probe) when positioning depends on the relationship to functional landmarks (esp. LES)
• For the pre-op assessment for anti-reflux surgery to exclude other primary esophageal dysmotility
Pandolfino et al. Gastroenterology 2005, 128, 209-224.
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EMS is possibly indicated… • For the pre-operative assessment of peristaltic
function in patients being considered for antireflux surgery
• For evaluation of dysphagia in patients status post antireflux surgery or treatment for achalasia
Pandolfino et al. Gastroenterology 2005, 128, 209-224.
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EMS is contraindicated… • For confirming a suspected diagnosis of GERD
• As the initial test for chest pain or other esophageal
symptoms because of the low specificity of the findings and the low likelihood of detecting a clinically significant motility disorder
Pandolfino et al. Gastroenterology 2005, 128, 209-224.
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Chicago Classification analysis • Based on assessment of individual swallows (10 x 5 mL) • Hierarchical approach • Two basic steps when looking at manometry study:
1. Evaluate the function of Integrated Residual Pressure (IRP) of LES • Presence or absence of relaxation
2. Evaluate peristaltic abnormalities • Amplitude of contractions • “Pattern” of contractions
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Kahrilas et al. Neurogastrol Motil 2015
Likely to cause clinical symptoms
Requires clinical judgement to determine significance for patient
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UES: Upper esophageal sphincter LES: Lower esophageal sphincter CDP: Contractile deceleration point EGJ: Esophagogastric junction CS: Contractile segment - 1st: UES - 2nd & 3rd: Esophageal body - 4th: LES Transition zone = pressure between 1st & 2nd CS
Kahrilas et al. Neurogastrol Motil 2015 High resolution manometry, UpToDate 2015, Graphic 86104 Version 2.0
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Principal Parameters for Chicago Classification v. 3.0
Normal
IRP (4 sec; mmHg) Integrated Relaxation Pressure < 15 mmHg*
CDP (time, position) Contractile Deceleration Point
DL ( sec) Distal Latency > 4.5 sec
DCI (mmHg-cm-sec) Distal Contractile Integral 450-8000*
Pattern Fragmentation Break > 5 cm in 20 mmHg isobaric contour
* = normal values used by Manoview Kahrilas et al. Neurogastrol Motil 2015
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IRP of Lower Esophageal Sphincter
Pandolfino et al. Gastroenterology 2008
Median of the 4 s of maximal relaxation of the LES in the 10-s window beginning at UES relaxation
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IRP of Lower Esophageal Sphincter
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Pandolfino et al. Thorac Surg Clin 2011
Contractile Deceleration Point (CDP) and Distal Latency (DL)
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Distal Contractile Integral (DCI)
• Amplitude x Duration x
Length (mmHg-s-cm) of any contraction exceeding 20 mmHg: from the transition zone to the proximal margin of the LES
• Summarizes the distal
contractile vigor
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Amplitude of Contractions
• Failed: DCI <100 mmHg-s-cm
• Weak: DCI >100 mmHg-s-cm, but <450 mmHg-s-cm • Normal: DCI ≥ 450 mmHg-s-cm but ≤ 8000 mmHg-s-cm
• Hypercontractile: DCI > 8000 mmHg-s-cm
Kahrilas et al. Neurogastrol Motil 2015
Ineffective
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“Pattern” of Contractions
• Premature: DL <4.5 s
• Fragmented: Large break (>5 cm length) in the 20-mmHg isobaric contour with DCI >450 mmHg-s-cm
• Intact: Not achieving the above diagnostic criteria
Kahrilas et al. Neurogastrol Motil 2015
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Normal EMS
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Case #1 Jeff, a 32 y.o. male pharmacist, referred to you in your outpatient clinic with a complaint of “I feel something stuck when I eat”.
– PMHx: none – Medications: Ranitidine 150mg PRN – Physical Exam: BMI 30, Normal
chest/cardiovascular exam, Benign abdomen
– Bloodwork: Normal CBC, lytes, Cr
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Case #1 Jeff tells you: - dysphagia is intermittent, started
3-4 years ago, gradually getting more frequent
- difficulty swallowing with solid and liquids
- increasing heartburn lately - using Ranitidine almost on a daily
basis for the past month
What is your differential diagnosis?
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On further questioning: – lost 5 kg over past 3 months due to difficulty swallowing, but no
other B symptoms – family history positive for esophageal cancer in a paternal uncle – chronic intermittent heartburn x few years, recent onset of
regurgitation – no chest pain – denies skin thickening/tightening, joint pain, Raynaud’s phenomenon – ex-smoker quitted 5 years ago, social alcohol use – never had endoscopy
Case #1
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What would you do now for Jeff?
Referral for endoscopy
What can you do in the meantime while patient awaits for endoscopy?
Trial of PPI BID x 4 weeks
Case #1
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On endoscopy…
What is the diagnosis?
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On EMS…
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Treatment • Jeff proceeded with pneumatic dilatation
Tack and Zaninotto. Nature Reviews Gastroenterology & Hepatology, 2015.
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EMS one month later…
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• 56 yr male, “Sugarbaker” operation for pseudomyxoma pertonei (previous adenoCA appendix 18 yrs ago), postop unable to swallow, even saliva.
• Previously had food obstruction 16 years ago treated with gastroscopy + dilatation, no problems with swallowing since, no heartburn, no problems swallowing prior to surgery.
• Upper GI xray was performed
Case #2
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Achalasia on Barium Swallow
Bird-Beak
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• Achalasia appearance reported on the X-ray • Upper GI endoscopy performed; partial gastrectomy +
Billroth II gastrojejunostomy • No esophageal stricture or esophagitis seen, successful
dilatation of esophagus to 17 mm • Dysphagia returned within a day • EMS with impedance performed
Case #2
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Motility Report
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What approach would you take now?
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Recap of the story • 56 yr male, minimal problems swallowing until he had a major
abdominal surgical procedure (Sugarbaker operation) • Barium swallow shows changes suspicious for Achalasia • No stricture or esophagitis (or NG tube trauma) seen at
gastroscopy • EMS shows no emptying of esophagus (with Impedance
catheter) and high pressure LES • CT scan shows no evidence of any mass or tumour in the
mediastinum, the stomach was well visualized and no tumour, no lesion in the cardia of the stomach.
• A therapeutic procedure was done
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Treatment • Repeat gastroscopy and Botox 100 units injected into
the LES • Patient report marked improvement in swallowing almost
immediately • Continues to have no problems with swallowing • Repeat EMS done 6 months later…
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LES= 9 mmHg
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Please download the CDDW™ app to complete the session evaluation and to receive your certificate
of attendance.
Evaluation and Certificate of Attendance